﻿/*
 * Copyright 2012 The Netty Project
 *
 * The Netty Project licenses this file to you under the Apache License,
 * version 2.0 (the "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at:
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations
 * under the License.
 *
 * Copyright (c) The DotNetty Project (Microsoft). All rights reserved.
 *
 *   https://github.com/azure/dotnetty
 *
 * Licensed under the MIT license. See LICENSE file in the project root for full license information.
 *
 * Copyright (c) 2020 The Dotnetty-Span-Fork Project (cuteant@outlook.com) All rights reserved.
 *
 *   https://github.com/cuteant/dotnetty-span-fork
 *
 * Licensed under the MIT license. See LICENSE file in the project root for full license information.
 */

namespace DotNetty.Common.Utilities
{
    using System;
    using System.Collections.Generic;

    public interface ICharSequence : IReadOnlyList<char>, IEquatable<ICharSequence>
    {
        /// Start is the inclusive start index to begin the subsequence.
        /// End is the exclusive end index to end the subsequence.
        ICharSequence SubSequence(int start, int end);

        ICharSequence SubSequence(int start);

        int IndexOf(char ch, int start = 0);

        bool RegionMatches(int thisStart, ICharSequence seq, int start, int length);

        bool RegionMatchesIgnoreCase(int thisStart, ICharSequence seq, int start, int length);

        bool ContentEquals(ICharSequence other);

        bool ContentEqualsIgnoreCase(ICharSequence other);

        int HashCode(bool ignoreCase);

        string ToString(int start);

        string ToString();
    }
}
